Getting erroneous results with the BMP085 sensor

[ChandanaGopal]

I tried to interface the BMP085 sensor with arduino and ATtiny85.I got brilliant results with arduino but getting erroneous results with ATtiny85 -negative values for pressure and 300+
for temperature.I used A4 and A5 for SDA and SCL on arduino and PB0 and PB2 for SDA and SCL on ATtiny85 (as I2C pins).What can I do to overcome this problem.Has it got anything to do with the clock frequency

[cano64]

you need to use TinyWireM library for I2C communication on attiny microcontrollers.